The Die Stamp was used pre 1860 when makers started etching
Split nuts are typically 1875 and before.
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Some somewhat sought after saws
Disston D-20
The Rip version is scarcer than the crosscut
Disston Acme 120 (including the thumbhole)
Disston #7
http://www.disstonianinstitute.com/7page.html
Dome Nuts (This Cornell-Willis-Hand-Saw with Dome Nuts can be seen here)
Richardson Bros. No 12
Disston No 12
Disston No. 240 metal cutting saw (No. 240 metal cutting saw. ca. 1945-1950 ) More at Disston Institute
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General Information
Simonds made saws from 1902-1926
Their early saws had a medallion and etch with the crescent moon in it.
They later had 2 medallions. One said Simonds Saw and Steel and one just said Simonds Saw.
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